Table 3: Elastomeric bearings with PTFE sheet: Limit states and threshold values
(R): limit state definition based on soa ,(E): Experimental, (S): Simulation or analysis
| Engineering Demand Parameter: Shear deformation γ (%) | |||
|---|---|---|---|
| Reference | Limit State | Shear deformation (γ) | Description |
| . (E) LaFave et al. (2013) | LS2 | 125-150% | Initiation of delamination and damage to PTFE sheet |
| LS3 | 550-600% | Severe delamination and damage to PTFE sheet | |
| LS4 | 608% | Unseating or instability | |
References
- LaFave, J., Fahnestock, L., Foutch, D., Steelman, J., Revell, J., Filipov, E., Hajjar, J. (2013). Experimental Investigation of the Seismic Response of Bridge Bearings, Research Report No. FHWA-ICT-13-002, Illinois Center for Transportation.